Improved furnace for making iron direct from the ore



' l. M. QUIMBY.

Making iron Direct.

Patefited Aug. 9, 1859.

k I /W M/ PM Iii Z71 e5.

NITE STATES JAMES M. QUINBY, A. H. BROWN, GEO. H. RENTON, AND J.ORISWVELL,

' OF NEWARK, NEW JERSEY.

IMPROVED FURNACE FOR MAKING IRON DIRECT FROM THE ORE.

To all whom it may concern:

Be it known that we, JAMEs M. QUINBY, ALBERT H. BROWN, GEORGE H. RENTON,and JAMES GE swELL, in the city of Newark, in the county of Essex andState of New Jersey, have made certain novel and useful Improvements inthe Mode of Constructing Reverberatory Furnaces for Making Wrought IronDirect from the Ore, &c. and we hereby declare the following to be afull, clear, and exact description of said improvements, reference beinghad to the accompanying drawings, which drawings are lettered tocorrespond with the specification, and'with the letters of referencemarked thereon.

In order that the public may fully understand the nature of ourinvention, and those skilled in the art be enabled to construct andoperate the same, we will describe it as follows:

Figure 1 is a perspective View of our reverberatory furnace A,deoxidizing chamber or tubes B,provided with rods or bars of iron, O OO, in each tube for the purpose of loosening up and assisting thedischarge of the ore into the ore box or hopper D, from whence it isdrawn off or let down on the puddling bottom or bed by means of adamper, E, at the lower end of the hopper. This damper serves a doublepurpose; first, to admit the ore into the puddling-chamber from theore-box; and, secondly, it prevents the hot gases from passing from thefurnace A up into the tubes B through the ore-box. Letters F F F F F Fare six pairs of dampers arranged so that the lower damper opens one ormore tubes, 3 and 4, and the upper or short damper opens or closes oneor more tubes, 1 and 2. These dampers are operated by means of shafts gg, which are provided with levers hhh h, togglejoints, and hooks z t i5. Letter K is an arch in the flue placed at the back end of thefurnace, (or any other suitable place,) to convey the escape heat fromthe furnace around and among the ore-tubes B at or near the bottom orlower ends thereof, thus keeping a uniform heat throughout the entirelength of the tubes, thereby producing a better quality of iron in ashorter time than by any other known process.

Fig. 2 is a perspective plan of our arrangement of deoxidizing-tubes 13,showing the modus opewmdz' of the dampers or cut-off F F F F FF. All thetubes are closed, exceptingl and 2 and 8 and 4, which are represented asbeing open; also showing more clearly the fiue and arch K.

The first furnace we constructed, known as the Renton furnace, had thedeoxidizingtubes, with the ore box or hopper attached, and these we donot claim as our invention; but the application of the dampers orcut-off, as described, and the manner of operating them by the means setforth, or their equivalents, as shown at Fig. 1, so that each damperwill open or close one or more tubes at the same time, together with themanner of regulating the feed from the ore box or hopper by means of adamper at the lower end of the hopper, and the use of an arch or itsequivalent in the flue for the purpose of throwing the heat around thebottom end of the tubes,thereby more uniformly deoxidizing the ore andproducing a more uniform and better quality of iron, together with themanner of assisting the discharge of the deoxidized ore by means of rodsor bars of iron or their equivalent-s running the entire length of thetubes, were our invention, and we believe them to be new and useful.Therefore What we claim as novel, and wish to secure by Letters Patentof the United States, is

1. The arch K, the hopper-damper E, and the rods or bars 0 O O 0,arranged and operated substantially as described.

2. The dampers at the bottom of the tubes,

for discharging one or more tubes at the same time into the ore box orhopper, substantially as shown at Fig. 2.

In testimony whereof we hereunto subscribe our names in the presence oftwo witnesses.

JAMES M. QUIN BY. ALBERT H. BROWN. GEO. H. RENTON.

JAMES ORISWELL.

Vitnesses:

ISAAC L. YOUNG, JOHN 'BUTTLE.

